| 摘要 |
PROBLEM TO BE SOLVED: To provide a track-jump control system and a method. SOLUTION: The track-jump control system applied in an optical disk drive comprises a signal generator, a protection device, a velocity estimator, and a controller. The signal generator receives the signal from the PUH and generates a tracking signal and a position signal. The protection device receives the position signal and when the position signal represents the PUH passes a predetermined position of the optical disk, the protection device generates a protection signal. The velocity estimator estimates the velocity of the PUH according to the tracking signal, and then generates a velocity signal. The controller receives the velocity signal and the protection signal, protects the velocity signal according to the protection signal, and generates a control signal to control the track-jump according to the protected velocity signal. COPYRIGHT: (C)2007,JPO&INPIT
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